int main() {
  YSE::System().init();

  synth.create();
  {
    SineWaveVoice voice;
    synth.addVoices(&voice, 16, 1);
  }

  sound.create(synth).play();
  soundPos.set(5.f, 0.f, 1.f);
  sound.setPosition(soundPos);

  midiFile.create("demo.mid");
  midiFile.connect(&synth);

  std::cout << "YSE can also be used to play midifiles if you setup a virtual synth." << std::endl;
  std::cout << "1: start midi file" << std::endl;
  std::cout << "2: pause midi file" << std::endl;
  std::cout << "3: stop  midi file" << std::endl;
  std::cout << "4/5: move sound position to left/right" << std::endl;
  std::cout << "e: to exit" << std::endl;

  Int counter = 0;
  while (true) {

    if (_kbhit()) {
      char ch = _getch();
      YSE::Vec pos = YSE::Listener().getPosition();
      switch (ch) {
      case '1': midiFile.play(); break;
      case '2': midiFile.pause(); break;
      case '3': midiFile.stop(); break;
      case '4': soundPos.x -= 0.1; sound.setPosition(soundPos); break;
      case '5': soundPos.x += 0.1; sound.setPosition(soundPos); break;
      case 'e': goto exit;
      }
    }

    YSE::System().sleep(100);
    YSE::System().update();

  }

exit:
  YSE::System().close();
  return 0;
}
int main() {
  YSE::System().init();

  YSE::Randomize();

  // create a synth with 32 voices
  synth.create();
  SineWaveVoice voice;
  synth.addVoices(&voice, 32, 1);

  // use this synth as a sound emitter
  sound.create(synth).play();
  soundPos.set(5.f, 0.f, 1.f);
  sound.setPosition(soundPos);

  // create 2 players which uses the synth, and set some starting values
  player1.create(synth);
  player2.create(synth);
  
  player1.setMinimumPitch(60).setMaximumPitch(72);
  player1.setMinimumLength(0.1).setMaximumLength(0.2);
  player1.setMinimumVelocity(0.2).setMaximumVelocity(0.4);
  player1.setVoices(1);

  player2.setMinimumPitch(40).setMaximumPitch(50);
  player2.setMinimumLength(2.f).setMaximumLength(4.f);
  player2.setMinimumVelocity(0.9f).setMaximumVelocity(1.0f);

  // create a scale which can be used by a player
  scale1.add(YSE::NOTE::C4)
    .add(YSE::NOTE::D4)
    .add(YSE::NOTE::E4)
    .add(YSE::NOTE::F4)
    .add(YSE::NOTE::G4)
    .add(YSE::NOTE::A4)
    .add(YSE::NOTE::B4);
  player1.setScale(scale1);
  player2.setScale(scale1);

  // create two distinct motifs
  motif1.add(YSE::MUSIC::pNote(0, YSE::NOTE::C4, 1.0f, 0.25))
    .add(YSE::MUSIC::pNote(0.25, YSE::NOTE::D4, 0.9f, 0.25))
    .add(YSE::MUSIC::pNote(0.5, YSE::NOTE::E4, 0.8f, 0.25))
    .add(YSE::MUSIC::pNote(0.5, YSE::NOTE::A4, 0.8f, 0.25))
    .add(YSE::MUSIC::pNote(0.75, YSE::NOTE::F4, 0.7f, 0.25))
    .add(YSE::MUSIC::pNote(1.0, YSE::NOTE::G4, 0.6f, 0.25))
    .setLength();

  motif2.add(YSE::MUSIC::pNote(0, YSE::NOTE::A5, 0.8f, 0.25))
    .add(YSE::MUSIC::pNote(0.25, YSE::NOTE::G5, 0.7f, 0.25))
    .add(YSE::MUSIC::pNote(0.50, YSE::NOTE::F5, 0.6f, 0.25))
    .add(YSE::MUSIC::pNote(0.75, YSE::NOTE::E5, 0.6f, 1.25))
    .setLength();

  // these scales are used as a group of possible starting pitches for the
  // motif. Transpositions will only happen to these pitches if such a 
  // scale is provided.
  YSE::scale motif1Scale;
  motif1Scale.add(YSE::NOTE::C4);
  motif1.setFirstPitch(motif1Scale);

  YSE::scale motif2Scale;
  motif2Scale.add(YSE::NOTE::A5);
  motif2.setFirstPitch(motif2Scale);

  // instruct player 1 to play this motif. Notice it has a weight of 5. In STEP0 we
  // will add another motif with a weight of 1. This results in this first motif being
  // played most of the time.
  player1.addMotif(motif1, 5).playMotifs(1);

  // add some reverb
  YSE::System().getGlobalReverb().setActive(true);
  YSE::System().getGlobalReverb().setPreset(YSE::REVERB_HALL);
  YSE::ChannelMaster().attachReverb();

  // the interface
  std::cout << "This demo doesn't give you a lot of options, but it will " << std::endl;
  std::cout << "evolve on its own." << std::endl;
  std::cout << "1  : start player" << std::endl;
  std::cout << "2  : stop player" << std::endl;
  std::cout << "e  : exit" << std::endl;

  Int counter = 0;
  while (true) {

    if (_kbhit()) {
      char ch = _getch();
      YSE::Vec pos = YSE::Listener().getPosition();
      switch (ch) {
      case '1': player1.play(); break;
      case '2': {
                  player1.stop();
                  player2.stop();
                  progress = 0;
                  stages = STEP0;
                  break;
      }
      

      case 'e': goto exit;
      }
    }

    if (player1.isPlaying() || player2.isPlaying()) progress += 0.1;

    // This switch adds changes to the music every 10 seconds
    switch (stages) {
    case STEP0:
      if (progress > 10) {
        std::cout << "step 1 started." << std::endl;
        std::cout << " --> second motif added" << std::endl;
        player1.addMotif(motif2, 1);
        stages = STEP1;

      }
      break;

    case STEP1:
      if (progress > 20) {
        motif1Scale.add(YSE::NOTE::G5);
        player1.setVoices(3, 10).setMaximumPitch(YSE::NOTE::C7, 20);
        std::cout << "step 2 started." << std::endl;
        std::cout << " --> add more voices and play higher" << std::endl;
        stages = STEP2;

      }
      break;

    case STEP2:
      if (progress > 30) {
        player2.play();
        player2.setVoices(3, 10);
        std::cout << "step 3 started." << std::endl;
        std::cout << " --> add some bass" << std::endl;
        stages = STEP3;

      }
      break;

    case STEP3:
      if (progress > 40) {
        player1.playMotifs(0.5, 10).setMinimumLength(2.f).setMaximumLength(4.f);
        player1.setVoices(8, 20);
        std::cout << "step 4 started." << std::endl;
        std::cout << " --> add more voices to player 1" << std::endl;
        std::cout << " --> have player 1 play random notes half of the time" << std::endl;
        stages = STEP4;

      }
      break;

    case STEP4:
      if (progress > 50) {
        std::cout << "step 5 started." << std::endl;
        std::cout << " --> add new notes to the scale" << std::endl;
        std::cout << " --> play less motifs and more random notes" << std::endl;
        scale1.add(YSE::NOTE::EF4).add(YSE::NOTE::BF4);
        player1.playMotifs(0.2, 10).setMinimumPitch(YSE::NOTE::C5, 20);
        stages = STEP5;

      }
      break;

    case STEP5:
      if (progress > 60) {
        std::cout << "step 6 started." << std::endl;
        std::cout << " --> add new notes to the scale" << std::endl;
        std::cout << " --> add new first pitches to motif 2" << std::endl;
        std::cout << " --> remove motif 1 from the player" << std::endl;
        std::cout << " --> add rests in player 2 (bass)" << std::endl;
        scale1.add(YSE::NOTE::FS4).add(YSE::NOTE::CS4);
        motif2Scale.add(YSE::NOTE::C4).add(YSE::NOTE::CS4).add(YSE::NOTE::D4);
        player1.removeMotif(motif1);
        player2.setMinimumGap(2, 10).setMaximumGap(5, 20);
        player2.setVoices(1);
        stages = STEP6;

      }
      break;

    case STEP6:
      if (progress > 70) {
        std::cout << "step 7 started." << std::endl;
        std::cout << " --> play more motifs, but mostly partial" << std::endl;
        player1.playMotifs(1.0, 5);
        player1.playPartialMotifs(0.5, 10);
        player2.stop();
        stages = STEP7;

      }
      break;

    case STEP7:
      if (progress > 80) {
        std::cout << "step 8 started." << std::endl;
        std::cout << " --> play lower notes" << std::endl;
        std::cout << " --> add more voices" << std::endl;
        std::cout << " --> play louder" << std::endl;
        player1.setMinimumPitch(30, 10);
        player1.setVoices(20, 20);
        player1.setMinimumVelocity(0.9, 10).setMaximumVelocity(1.0, 10);
        stages = STEP8;

      }
      break;

    case STEP8:
      if (progress > 90) {
        std::cout << "step 9 started." << std::endl;
        std::cout << " --> have player 2 play wide chords at random" << std::endl;
        stages = STEP9;
        player2.setVoices(15);
        player2.setMinimumLength(3).setMaximumLength(5);
        player2.setMinimumVelocity(0.9).setMaximumVelocity(1.0);
        player2.setMinimumPitch(20).setMaximumPitch(100);
        player2.setMinimumGap(0).setMaximumGap(0);
        player2.playMotifs(0);
        player2.play();
      }
      break;

    case STEP9:
      if (progress > 100) {
        std::cout << "step 10 started." << std::endl;
        std::cout << " --> player 1 stops" << std::endl;
        std::cout << " --> player 2 plays even more long notes" << std::endl;
        stages = STEP10;
        player1.stop();
        player2.setVoices(30);
      }
      break;

    case STEP10:
      if (progress > 110) {
        std::cout << "step 11 started." << std::endl;
        std::cout << " --> reset player 1 to motif 1" << std::endl;
        std::cout << " --> fade out player 2" << std::endl;
        stages = STEP11;
        player1.removeMotif(motif2).addMotif(motif1);
        player1.setVoices(1);
        player1.setMinimumVelocity(0.4).setMaximumVelocity(0.6);
        player1.playMotifs(1).playPartialMotifs(0);
        player1.play();
        player2.setMinimumVelocity(0.1, 10).setMaximumVelocity(0.2, 10);
        player2.setMinimumPitch(70, 10);
      }
      break;

    case STEP11:
      if (progress > 120) {
        std::cout << "step 12 started." << std::endl;
        std::cout << " --> player 2 stops" << std::endl;
        std::cout << " --> player 1 players only partial motifs" << std::endl;
        player2.stop();
        motif1Scale.remove(YSE::NOTE::G5);
        player1.playPartialMotifs(1, 10);
        scale1.remove(YSE::NOTE::FS4).remove(YSE::NOTE::CS4);
        scale1.remove(YSE::NOTE::EF4).remove(YSE::NOTE::BF4);
        player1.setVoices(4, 10);
        stages = STEP12;

      }
      break;

    case STEP12:
      if (progress > 130) {
        std::cout << "step 13 started." << std::endl;
        std::cout << " --> nothing new" << std::endl;
        stages = STEP13;

      }
      break;

    case STEP13:
      if (progress > 140) {
        std::cout << "step 14 started." << std::endl;
        std::cout << " --> player 1 plays louder" << std::endl;
        player1.setMinimumVelocity(0.8, 10).setMaximumVelocity(1.0, 10);
        stages = STEP14;

      }
      break;

    case STEP14:
      if (progress > 150) {
        std::cout << "step 15 started." << std::endl;
        std::cout << " --> nothing new" << std::endl;
        stages = STEP15;

      }
      break;

    case STEP15:
      if (progress > 160) {
        std::cout << "step 16 started." << std::endl;
        std::cout << " --> add short 'F' repetitions on player 2" << std::endl;
        scale1.clear();
        scale1.add(YSE::NOTE::F4);
        player2.setMinimumLength(0.1).setMaximumLength(0.2);
        player2.setMinimumGap(0.1).setMaximumGap(0.2);
        player2.setMinimumVelocity(0.9, 10).setMaximumVelocity(1.0,10);
        player2.setMinimumPitch(70).setMaximumPitch(100);
        player2.setVoices(15);
        player2.play();
        stages = STEP16;

      }
      break;

    case STEP16:
      if (progress > 170) {
        std::cout << "step 17 started." << std::endl;
        std::cout << " --> player 2 add 'B'" << std::endl;
        stages = STEP17;
        scale1.add(YSE::NOTE::B4);
        
      }
      break;

    case STEP17:
      if (progress > 180) {
        std::cout << "step 18 started." << std::endl;
        std::cout << " --> no more partial motifs on player 1" << std::endl;
        std::cout << " --> set player 1 to only one voice" << std::endl;
        std::cout << " --> player 2 fade out" << std::endl;
        stages = STEP18;
        player1.playPartialMotifs(0, 5);
        player1.setVoices(1, 5);
        player2.setMinimumVelocity(0.1, 10).setMaximumVelocity(2.0, 10);
      }
      break;

    case STEP18:
      if (progress > 190) {
        std::cout << "step 19 started." << std::endl;
        std::cout << " --> player 2 stops again" << std::endl;
        player2.stop();
        stages = STEP19;

      }
      break;

    case STEP19:
      if (progress > 200) {
        std::cout << "THE END." << std::endl;
        player1.stop();
        player2.stop();
        stages = STEP0;
        progress = 0;
      }
      break;
    }

    YSE::System().sleep(100);

    YSE::System().update();

  }

exit:
  YSE::System().close();
  return 0;
}
int main() {
  YSE::System().init();


  envelope.addPoint(YSE::DSP::ADSRenvelope::breakPoint(0.f, 0.f, 0.2));
  envelope.addPoint(YSE::DSP::ADSRenvelope::breakPoint(0.1f, 1.f, 4));
  envelope.addPoint(YSE::DSP::ADSRenvelope::breakPoint(0.2f, 0.5f, 0.5, true));
  envelope.addPoint(YSE::DSP::ADSRenvelope::breakPoint(0.5f, 0.6f, 0.5));
  envelope.addPoint(YSE::DSP::ADSRenvelope::breakPoint(0.9f, 0.5f, 0.5, false, true));
  envelope.addPoint(YSE::DSP::ADSRenvelope::breakPoint(1.0f, 0.f, 0.5));
  envelope.generate();
  envelope.saveToFile("ADSRtest");
  

  std::cout << "press e to exit." << std::endl;

  synth.create();
  synthVoice voice;
  synth.addVoices(&voice, 8, 1);
  sound.create(synth).play();

  int counter = 0;
  while (true) {

    // random player
    if (YSE::Random(10) == 0) {
      synth.noteOff(1, bassNote);
      bassNote = YSE::Random(30, 50);
      Flt vel = YSE::RandomF(0.8, 0.9);
      synth.noteOn(1, bassNote, vel);
    }

    // melody
    if (YSE::Random(6) == 0) {
      synth.noteOff(1, middleNote);
      synth.noteOff(1, middleNote - 3);
      middleNote = YSE::Random(55, 65);
      synth.noteOn(1, middleNote, YSE::RandomF(0.5, 0.7));
      synth.noteOn(1, middleNote - 3, YSE::RandomF(0.5, 0.7));
    }

    /*if (counter % 20 == 0) {
      synth.noteOn(1, 60, 0.3);
      synth.noteOn(1, 67, 0.3);
      synth.noteOff(1, 62);
      synth.noteOff(1, 70);
    }
    else if (counter % 10 == 0) {
      synth.noteOff(1, 60);
      synth.noteOff(1, 67);
      synth.noteOn(1, 62, 0.3);
      synth.noteOn(1, 70, 0.3);
    }*/

    counter++;

    if (_kbhit()) {
      char ch = _getch();
      switch (ch) {


      case 'e': goto exit;
      }
    }
    YSE::System().sleep(100);
    YSE::System().update();
  }


exit:
  YSE::System().close();
  return 0;
}